Convert hefner candle to candela (international)
Hefner Candle
The Hefner candle (HK, Hefnerkerze) was a German unit of luminous intensity defined by a standard Hefner lamp burning amyl acetate. One Hefner candle equals approximately 0.9 international candelas. It was the standard photometric unit in Germany and some other European countries until the adoption of the international candela.
Candela (International)
The candela (cd) is the SI base unit of luminous intensity. It is dem define am as the luminous intensity of a source that emits monochromatic radiation of frequency 540×10¹² hertz with a radiant intensity of 1/683 watt per steradian. One international candle equals one candela.
Hefner Candle to Candela (International) conversion table
| Hefner Candle | Candela (International) |
|---|---|
| 1 | 0.9 |
| 2 | 1.8 |
| 5 | 4.5 |
| 10 | 9 |
| 25 | 22.5 |
| 50 | 45 |
| 100 | 90 |
| 500 | 450 |
| 1000 | 900 |